package TJISE.day03;

public class ExtendsTest {

}
    class Father {
        //默认一个构造方法
        int i;

        Father() {
        }

        public Father(int i) {
            this.i = i;
        }


    void M(){

    }
    }
    class Son extends Father{
        Son(int i){
//        int j = 0;
            super(i);//
    }
    }
